Packing for piston-rods, &amp;c.



lo. I. E. MAsTlN PACKING IOR PISTON RODS,A &c. APPLICATION FILED SEPT. 24, I9I5.

.esulano o n okooooooo o. oowunoooooononwuo I 4 anoooooo aoaaoooaouoo nooo o oo ooo ooooanooooo una no onoo oo o ooo oooooo noon annuo uaouooo oooounooouu ooooooouoauo o aoeoaoooonn oonuaoooa ATTOH/VEKS THB COLUMBIA PLANDGRAPH C0., WASHINGTON. D. C.

UNITED STATES ATETF' CHARLES I. n. MAs'rINQoF MIDLAND rnnnwnnwuniisnvf A PACKING FonrIs'roN-Ronsgac.

z To all whom t may concern? Beit known that I, 'CHARLES' I. E. Mas-y TIN, a citizen of the United States, residing atiMidland'Park, in the county of Bergen andlState `of New Jersey, have invented certain new and useful Improvements in Packing for Piston-Rods, &c., and do hereby declarethat thefollowing is afull, clear, and exact "description of the same, reference being `had tothe annexed drawings, making a partof this specification, and to the letters and figures ofreference marked thereon.

The object of my, invention is to provide' a packing for piston rods "and other moving parts of engines and machinery where a tight joint against the 4passage of steam, air,

gas, oil, water,"etc., is required, which-packing will have thequalities of pliability and elasticity,' so that while capable of easy application tothe stuifingbox itwill, neverthe- 1 less, quiV kly`` respond to conditions calling for compression. or expansion `to make a ytight jointfand adaptv itselfto non-alinementfof the parts, and which will be durable softhatit will possess these qualities for a "f long time- The invention consists primarily in providinga strip for the manufacture of pack* ing made'up of alternateparallel layers of fabric and rubber whereinsaid layers are oblique to the longitudinal line of thestrip.

` A further object of theinvention is to provide la packing strip wherein there are no 'threads ofthe fabriclayers running longitudinally yofthe strip, all `of said threads "'f vbeing arranged oblquely yand transversely scribed herein is that when the Vstripy iscoiled i the inner surface thereof iisv condensed 'and Acontracted while the outer surfaceth'ereo-f is more or less free to yield and` expandunder 4 the ceiling strain. It is manifest that this. is

Specificationfrettrsrfeit. ""ratented`ap1-1i, 191e.' 'Application mea september 24,1915.v serialnasasie. y

desirable for the 'reasonk that vthe innersuri face 'of the ring receives the greatest wear.

Therefare manyother yadvantages of Ta packing constructedv 'in 'accordance with this invention, all of-.w-hich'will be manifest f""` 55 1 thought unnecessary. tofurther enumerate:

to those skilled in Ythe-art, andit` is themherein.

In the drawing Figure is a .perspective i view of ay'packing strip made linaccordance ijf; 60. I

with"this`invention', onefnend of the? strip being cut obliquelyi alongl'one ofthe fabric j y layers; Fig.l 2 a plan view of a packing `ring made from the-packing vstrip constructed in'accordance withthis'invention;Figf'an` I'. 4edgeview of the `ring shown in Fig. 2; Fig. Ll'anelevation of a'coil formed from'a pack- `ing strip'made in accordance with this invention; Fig..5fa Vtransverse sectionalfviewv of the packing'cstrip; andFig.' 6 a detail perspective view of a -stripof packing oblong lnitransverse section. Y 'Y v Referring to" .the-f various"y parts by .nukjl y merals, 1 vdesignates'the packing strip.` -This strip 1s made up o'f'alternate parallel layers 'f l' j 75 of *.fabric 2 and rubberf. .The fabric is preferablyy what is known in the art as cotton duck oli-canvas, and Veach layer is." coated and impregnated with' rubber gum. The

layersof canvas areobliquely arranged with i i' l respect to the,.longitudinal line of the, pack-1 ing strip 'and extend fromfwhat [may `be l termed, for the convenience 1of reference, the

uppersurface'll ofthe strip to the lower sur-yface thereof.. These layers' alsolextend y' -l 'il n iss fythroug'ghy y.thef stripfromone fsidesto the other. The upper and llowerfed/gesof reach layer are perpendicular to the longitudinal Aline ofthe strip, as shown vclearly inFigQl", y so. thateachY layer lis formed of a rectangle piece obliquelyV disposed 4 in the stripfwith the kupper and lower,edgesofthelayer per.- pendicular Ito .a the longitudinal line '.vof.` the strip; VVV'In each fabric layerthe threads are `onrthe bias,xas `clearly shown' in Figliso that'theends only ofsaidthreads are eX- posed on the four sides v`of; ythe packing'strip.

Itis manifest frorna, construction such as I :descr1bed,there'are no' threadsrunn'ing lon;v

gitudinally of the strip. This is necessarily so because of the oblique disposition of the layers of fabric and the diagonal arrangement of threads through the strip.

A strip made up in accordance With this invention maybe bent into ring form as shown in Fig. 2, the sides 6 ofthe strip becoming the inner and outer surfaces of the ring; and the `upper and :lower surfacesof the strip, as viewed in Fig. l, becoming flat surfaces of the ring. When "a strip is bent intoring vform .the inner surface of Vthe ring is Vcompressed-'and the outer surface thereof is somewhat eXpandedror stretched. rlfhis is readily accomplished by reason of the fact that lthere are noxlongitudinal threads .in the strip'to .sresist vthe bending movement of the strip andfbecause the threadsin-each ffabric r1ayer1are -on ,the bias. The fedges of 'the layers of fabricfexposed onfthe lflat surfaces of the ring takey a radial position-'asthestrip is'bent around to yform,the.:ring. Thexedges of the layers exposed on the inner surface of the ring are brought closer `together, and the-.edgesfeXposed on fthe outerlsur'facefof .the Afring'are separated slightly fonzthe bend .ing or coilingfof=thefstrip- :In iFfig. 14C Athe strip iis shown las rbent :into fa spiral coil.; and fit is imanifest that Ithe same action takes place and fthe sa me ,result is fob- .tained `as 4described with .reference :as ito ithe making `.of ithe ring. Sections fof the coil maybe cut foff .for fthe .purpose vof :making packing rings, asis common :with .respect to all packingstrips fmade iup in A'coil form.

:In 'Eigs. 1 ;and 5 'the packing strip Lis shown as substantiall-ysquare 1in cross section. .All packing strips itha't I #am aware ofheretofore :made and adapted '-to be'coiled or --bent finto .ring .form `Were `square in cross section. By reason ofithe peculiar arrangement k.of the fabric layers 1in a packing .strip made in accordance with thisinyenti'on 'the said strip .may be lof any rectangular form.

As .shown in Eig. 6 :the packing strip lis oblong .in :cross fsection, ,fthe .greater -dimension `being :across :the topfof the ,istrip Aso that when the strip :is coiled the at surfaces .fof the coil :are :much .broader than lthe inner and :outer :surfaces thereof. Strips of 'this yform..may be readily-coiled y'or bent into .ring form Without buckling -of 4the strip. When the packing strip is madeinto packing rings the `ends only :of fthe threads yof .the fabric layers .zare brought into "contact with the moving part. lt is/also clearftha't the layers of .fabric inthe ring are 4obliquely disposed With respect to the axiallinefof the'part'that is fpacked. This is 'of advantage forthe vreason that '.@the reciprocation "of said part idoes not tend to separa-te lthe -zlayers of fabric. Itis manifest Lthatrthe Wear of the :reciprocating part Iaga-inst the packing :is on .the ends q:only of the threads, and fas said .threads extend obliquely and transversely through the packing' strip they cannot possibly be detached or disintegrated or loosened from the strip.

It is, of course, to be understood that a packing strip made in accordance With this invention maybe cured or vulcanized under pressure, in a mold if desired, so that it Will fbe adapted for fuse as a cold Water packing,

or forsteam, hot Water and hot oils.

A packing strip made in accordance with this invention is very durable, being especially adapted to withstand the-disinte'gratw ing effect y'of :the steam and hot oils in a stuiiing boX.

What I claim is.:

l. A packing .strip formed of :alternate yparallel .layers of fabric and rubber, `the 4fabric 'layersrbeingfarranged in vplanes transversely disposed yand f oblique to fthe `longitudinal line `of the :packing strip, the four edges Iof Ieach yof .said layers ibeing exposed on l:the four sides of fthe packing strip `and ythe :threads of :each layer fbeing f on .fthe bias lwhereby ithe rends of lsaid threads only are exposed `on four sidesof the `'packing strip.

2. A ypacking lstrip `formed of alternate .parallel layers /of fabric and zrubber, the fabric layers being Vtransversely disposed and .arranged with tivo opposite edges 1obrlique zto the longitudinal vline of the .istrip and with lthe other `.two oppositefcdges perpendicular .to ithe longitudinal line 'of fthe strip Aand Lon :opposite sides l of the strip, the threads of each fabric flayer being von l.the Ybiasiand 'thefends only Vofzsaid threads eX- .posedfonthe foursides of the packing strip.

3. A :rectangular packing V strip formed of rubberfand parallel llayers of fabric, the :fabric klayers being transverse vof the strip yand arranged in planes oblique to andeXtending across fthe longitudinal line fof `the packing strip, the four edgesfofeach .fabric layer'fbeing yeX-posed on :the vfour longitudinally eX- -tending .sides -of the strip.

4.. A packing ring formed fof a strip of material ,rectangular in cross section and zformedfof rubber/*and parallel @layers of fabric, the fabric layers vextending transversely Athrough ithe strip, two opposite edges of said :layers being 'exposed on lthe 'opposite flat surfaces of the ring, the other opposite 'edges ofathe layers being exposed on the ,inner and outer surfaces of .the ring and 'obliquely disposed, whereby `each layer Will `extend transversely through the strip `on an oblique -angle and there will be no threads running longitudinally :or yann'ularly of .the ring.

5. A packing ring formed fof a :strip .of material :rectangular in cross section and .formed/of alternatelayers'of fabric :and rubber, the fabric Slayers extending transversely through thefstri 4,.two oppositeiedgescfffsaid 1,178,741 K Q K 3 layers being exposed on the opposite fiat layer will extend transversely through the surfaces of the ring and radially disposed, strip on an oblique Sangle andthere will be `10 the other opposite edges of the layers being no threads running longitudinally or anexposed on the inner and outer surfaces of nularly of the ring.`` y v 4 f n v, the ring and obliquely disposed, the threads Intestimony whereof I hereunto 'aPiX my e, of each fabric layer being on thebias, the signature. ends only of the threads being exposed on .f l y the four sides of the packing whereby each CHARLES I( E. rMASTIN.

Copies of this patent may be obtained for ve cents each, by addressing the ".Qommi'ssioner of intenti,

' waamngtonm. c." Y l 

